Two hoses, one of 20 mm diameter, the other of 15 mm diameter, are connected one after the other to a faucet. At the open end of the hose, the flow rate of water is 10 L/min. Through which hose does the water flow slower? Select one: a. the answer depends on which of the two hoses comes first in the flow (i.e., which is attached to the faucet). b. the water velocity is the same in both cases, c. the 15 mm hose, d. the 20 mm hose,